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can_faq:can_fd [2016/08/15 10:03]
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can_faq:can_fd [2018/08/21 23:08] (current)
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 To improve CAN regarding bandwidth Bosch has specified the **improved CAN** data link layer protocol, called **CAN FD**. The idea behind CAN FD is that after the arbitration phase of classical CAN the data rate can be increased. The data bits are transferred with a higher bit rate than in the arbitration phase when a transmitter has won the bus arbitration. The speed is limited only by the CAN transceiver signal delay and the signal delay on the cable. \\ Besides the increased bit speed the new CAN FD allows date frames up to 64 bytes compared with the maximum of 8 bytes with **classical CAN**. To improve CAN regarding bandwidth Bosch has specified the **improved CAN** data link layer protocol, called **CAN FD**. The idea behind CAN FD is that after the arbitration phase of classical CAN the data rate can be increased. The data bits are transferred with a higher bit rate than in the arbitration phase when a transmitter has won the bus arbitration. The speed is limited only by the CAN transceiver signal delay and the signal delay on the cable. \\ Besides the increased bit speed the new CAN FD allows date frames up to 64 bytes compared with the maximum of 8 bytes with **classical CAN**.
  
-The ISO TC22 SC3 WG1 is currently ​working to integrate CAN FD in the ISO 11898-1 standard as an optional feature, then called **ISO CAN FD**. +The ISO TC22 SC3 WG1 has been working to integrate CAN FD in the ISO 11898-1 standard as an optional feature, then called **ISO CAN FD**. The standard is available since end of 2015 as **ISO 11898-1:2015**
-A [[http://​www.can-newsletter.org/​engineering/​standardization/​141209_iso-can-fd-or-non-iso-can-fd/​ | CiA Newsletter article]] explains the difference between the original BOSCH non-ISO CAN FD and the upcoming ISO CAN FD protocol.+
  
 For more information see the Bosch [[http://​www.bosch-semiconductors.de/​media/​pdf_1/​canliteratur/​can_fd_spec.pdf | CAN FD Specification Version 1.0]] or the older [[http://​www.bosch-semiconductors.de/​media/​pdf_1/​canliteratur/​can_fd.pdf|CAN-FD Whitepaper (V1.1) ]]. [[http://​www.bosch-semiconductors.de/​media/​pdf_1/​canliteratur/​icc13_paper_Hartwich.pdf | Official introduced]] by BOSCH at the 13th international CAN Conference in March 2012. \\ Since May 2012 the new [[:​controllers:​bosch|M_CAN]] manual contains specific information on CAN FD used in this FPGA IP. For more information see the Bosch [[http://​www.bosch-semiconductors.de/​media/​pdf_1/​canliteratur/​can_fd_spec.pdf | CAN FD Specification Version 1.0]] or the older [[http://​www.bosch-semiconductors.de/​media/​pdf_1/​canliteratur/​can_fd.pdf|CAN-FD Whitepaper (V1.1) ]]. [[http://​www.bosch-semiconductors.de/​media/​pdf_1/​canliteratur/​icc13_paper_Hartwich.pdf | Official introduced]] by BOSCH at the 13th international CAN Conference in March 2012. \\ Since May 2012 the new [[:​controllers:​bosch|M_CAN]] manual contains specific information on CAN FD used in this FPGA IP.
 +A [[http://​www.can-newsletter.org/​engineering/​standardization/​141209_iso-can-fd-or-non-iso-can-fd/​ | CiA Newsletter article]] explains the difference between the original BOSCH non-ISO CAN FD and the upcoming ISO CAN FD protocol.
  
 [[http://​can-newsletter.org/​engineering/​standardization/​nr_stand_cia_canfd_120419 | CiA]] provides information on CAN FD and organizes world wide events to promote it. [[http://​can-newsletter.org/​engineering/​standardization/​nr_stand_cia_canfd_120419 | CiA]] provides information on CAN FD and organizes world wide events to promote it.

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